First of all, your question is not clear enough for me,but let me conclude what you are saying.
Loosing the internal display depends on LCD and Flex connector that connects the upper and the lower panel. But most problem that i encounter about this mobile is the replacement of Flex connector due to some cut areas along its parts. Outer display is separate from internal display so possible to see the outer display.
This mobile need to fix by an experience techinician because fixing this problem is more complicated to work with, more likely on dismantle,replacing and disassembling the parts than any small type of mobile.I may advice you to bring it to an authorize service center to make this problem.
Regarding your personal data that stack inside your phone, You need a tool to recover all of your important data.Download this link to copy all files coming from the phone and all the way to your computer.
NOKIA PC SUITE DOWNLOAD
Follow this procedure :
1. dowload the link above and locate the download file were save.
2. run the application and install the program,just follow the instruction and wait till the installation is done.
3. open the application and connect the phone thru the computer using data cable or usb cable.
4. wait until the mobile is recognize by computer.
Now you can see all data stored from phone to computer,you can download and transfer them to another phone if applicable.
Please correct me if this is what you try to say.